Changing Filament

K8200 3D Printer K8200 - Issues while printing
1

Hello,

How does one cleanly do a filament change with the original extruder and .5mm nozzle?

The last 3 attempts I heated the filament to 5 degrees over good print temp, and when I try to pull it from the extruder it seems to harden in the isolating tube and glue itself in place. The filament usually snaps flush to it.

My only recourse is to dissassemble the hotend and drill out the stuck segment. Once that’s done I’m back in business.

Does anyone have a tried and true method for changing filament to avoid this?

Thanks,

-D

2

Try turning the large gear 5 or 6 times (slow) clockwise.
Then loosen the spring and pull the filament out.

3

Extrude at least 30mm of filament to eliminate the ‘bulge’ that forms on the end, then immediately retract 100mm or so.

4

That worked perfectly, thank you!